Every year it has been observed that there has been an increase in the number of contributions to the literature of peroral endoscopy. Whereas formerly reports of cases of foreign body came from relatively few bronchoscopic clinics, now reports are observed in practically every state medical journal. This is indicative of a more general recognition of these cases as well as an increase in the number of specialists who can successfully care for them. Bronchoscopy and esophagoscopy are now commonly accepted procedures in diagnosis and treatment. The literature dealing with these procedures, consisting in great part of reports on their use and the results secured, is becoming voluminous. Since many of these articles set forth views that have been generally accepted, it would seem an unnecessary repetition to include them in this review.
DISEASES OF THE ESOPHAGUS
Congenital Stenosis.—In considering congential stenosis of the esophagus, attention has always been focused on the narrowing of the esophageal lumen, and no opinion has been expressed regarding
CLERF LH. Progress in Otolaryngology: PERORAL ENDOSCOPY: A Summary of the Bibliographic Material Available in the Field of Otolaryngology. Arch Otolaryngol. 1932;15(3):445–461. doi:10.1001/archotol.1932.03570030463016
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